From de311b2f2d914a57ef499bdc0a401bdca3fc0056 Mon Sep 17 00:00:00 2001
From: Dave Halter <davidhalter88@gmail.com>
Date: Sun, 23 Sep 2018 23:22:33 +0200
Subject: [PATCH] Replace the Generator class for now

---
 jedi/evaluate/compiled/access.py  | 29 -----------------------------
 jedi/evaluate/context/iterable.py |  8 +++++++-
 jedi/evaluate/filters.py          |  8 --------
 3 files changed, 7 insertions(+), 38 deletions(-)

diff --git a/jedi/evaluate/compiled/access.py b/jedi/evaluate/compiled/access.py
index fb2676bd..4f6f91e9 100644
--- a/jedi/evaluate/compiled/access.py
+++ b/jedi/evaluate/compiled/access.py
@@ -43,12 +43,6 @@ WrapperDescriptorType = type(set.__iter__)
 object_class_dict = type.__dict__["__dict__"].__get__(object)
 ClassMethodDescriptorType = type(object_class_dict['__subclasshook__'])
 
-def _a_generator(foo):
-    """Used to have an object to return for generators."""
-    yield 42
-    yield foo
-
-
 _sentinel = object()
 
 # Maps Python syntax to the operator module.
@@ -446,33 +440,10 @@ def _is_class_instance(obj):
         return cls != type and not issubclass(cls, NOT_CLASS_TYPES)
 
 
-if py_version >= 35:
-    exec(compile(dedent("""
-        async def _coroutine(): pass
-        _coroutine = _coroutine()
-        CoroutineType = type(_coroutine)
-        _coroutine.close()  # Prevent ResourceWarning
-    """), 'blub', 'exec'))
-    _coroutine_wrapper = _coroutine.__await__()
-else:
-    _coroutine = None
-    _coroutine_wrapper = None
-
-if py_version >= 36:
-    exec(compile(dedent("""
-        async def _async_generator():
-            yield
-        _async_generator = _async_generator()
-        AsyncGeneratorType = type(_async_generator)
-    """), 'blub', 'exec'))
-else:
-    _async_generator = None
-
 class _SPECIAL_OBJECTS(object):
     FUNCTION_CLASS = types.FunctionType
     BOUND_METHOD_CLASS = type(DirectObjectAccess(None, None).py__bool__)
     MODULE_CLASS = types.ModuleType
-    GENERATOR_OBJECT = _a_generator(1.0)
     BUILTINS = builtins
 
 
diff --git a/jedi/evaluate/context/iterable.py b/jedi/evaluate/context/iterable.py
index 72a622bd..a12cef7c 100644
--- a/jedi/evaluate/context/iterable.py
+++ b/jedi/evaluate/context/iterable.py
@@ -49,7 +49,13 @@ class IterableMixin(object):
 
 class GeneratorBase(BuiltinOverwrite, IterableMixin):
     array_type = None
-    special_object_identifier = u'GENERATOR_OBJECT'
+
+    @memoize_method
+    def get_object(self):
+        generator, = self.evaluator.typing_module \
+            .py__getattribute__('Generator') \
+            .execute_annotation()
+        return generator
 
     @publish_method('send')
     @publish_method('next', python_version_match=2)
diff --git a/jedi/evaluate/filters.py b/jedi/evaluate/filters.py
index 841bc975..ab9aaaa3 100644
--- a/jedi/evaluate/filters.py
+++ b/jedi/evaluate/filters.py
@@ -434,17 +434,9 @@ class AbstractObjectOverwrite(use_metaclass(_OverwriteMeta, object)):
 
 
 class BuiltinOverwrite(Context, AbstractObjectOverwrite):
-    special_object_identifier = None
-
     def __init__(self, evaluator):
         super(BuiltinOverwrite, self).__init__(evaluator, evaluator.builtins_module)
 
-    @memoize_method
-    def get_object(self):
-        from jedi.evaluate import compiled
-        assert self.special_object_identifier
-        return compiled.get_special_object(self.evaluator, self.special_object_identifier)
-
     def py__class__(self):
         return self.get_object().py__class__()